PEUCETIA. 339 
B. Palpal bulb without “clavis.” Posterior row of eyes strongly 
procurved. Mandibles with a small tooth on the lower margin. 
i. nei of posterior row sub-equidistant . . . . . . . « Oxyorss, Latr. 
. Central posteriors much further from each other than from the 
laterals. 
a; Anterior row of eyes distinctly recurved; eyes much closer 
together, each central eye being scarcely more than one and 
a half diameters from the adjacent lateral . . . . . . Oxyoprxrpon, O. P.-Cambr. 
6. Anterior row of eyes straight, the anterior margins of the 
centrals falling just inside the anterior margins of the laterals, 
supposing a tangential line to be drawn. Eyes widely separate, 
the centrals being distant from the adjacent laterals a space 
greater than that occupied by the two centrals together and 
the interval separating them . . . . . . . « . ~ ~ Hamartariva, Keys. 
| PEUCETIA. 
Pasithea, Blackwall, Ann. & Mag. Nat. Hist. (3) 1. p. 427 (1858) (nom. preocc.). 
Peucetia, Thorell, Europ. Spid. pp. 87, 106 (1869-70). 
Type of Pasithea and Peucetia, P. viridis, Blackwall. Algeria. 
The spiders belonging to this genus may be recognized by the slight procurvature of 
the posterior row of eyes, these latter being strongly procurved in Oxyopes, Oxyopeidon, 
and Hamataliva. The bulb of the male palpus, moreover, is furnished with a “ clavis,” 
while the mandibles have no tooth on the lower margin. 
The cocoon, in the case of Oxyopes, is lenticular and spun up in an irregular web 
amongst leaves and twigs, while that of Peucetia, which has been mentioned by almost 
every author, is pear-shaped, but very stout and covered with little points, and is 
suspended by the stalk under a leaf, in an irregular network of crossing lines. 
There are probably a great number of Neotropical forms belonging to this and the 
allied genera, but only about forty have hitherto been described. 
The two species of which we have examples in our collection may be distinguished 
from each other by the following characters :— 
Males. 
a. Tibia of palpus longer, four times as long as broad. Lateral lamelliform 
spine lying on the outer side of the bulb near the margin of the tarsal 
sheath, unibranchiate, dilate, and flat at the base, curved suddenly 
upward, its apex directed forward, forming a sinuously curved sharp 
point... . ee ee rr . + « « « longipalpis, sp. n. 
b. Tibia of palpus shorter, scarcely three times as long as broad. Lateral 
lamelliform spine bibranchiate, slender throughout, the inner branch 
shorter and stouter, the outer longer and more slender, filiform, curving 
suddenly downward and then forward with a slightly sinuous curve. . dibranchiata, sp. n. 
2x 2 
